fix(fastapi):save api logs

servers/fastapi/api/services/logging.py

@@ -1,4 +1,6 @@
+import os
 from typing import Any
+import logging
 from logging import Logger
 
 
@@ -7,6 +9,10 @@ class LoggingService:
     def __init__(self, stream_name: str):
         self._logger = Logger(stream_name)
 
+        log_file_path = os.path.join(os.getenv("APP_DATA_DIRECTORY"), "logs", "api.log")
+        os.makedirs(os.path.dirname(log_file_path), exist_ok=True)
+        self._logger.addHandler(logging.FileHandler(log_file_path))
+
     @property
     def logger(self) -> Logger:
         return self._logger